The O-Bark T-shirt is made of fabric with integrated moisture control to keep the skin cool and dry at all times. Classic in fit, it is sporty and modern in style thanks to the Oakley print ellipse on the chest. Features Composition: 85% Polyester, 15% Cotton Technologies HYDROLIX Stay cool, dry and comfortable with its moisture-wicking, wicking system and fast drying time. Oakley's exclusive O Hydrolix moisture management system protects you during any performance.